Some innocent medical research, I presume.
Russian genetic material is being harvested all over the country, purposefully and professionally, President Vladimir Putin has said, possibly hinting at the US Air Force's earlier move to acquire Russian tissue samples.

In July, the US Air Force Air Education and Training Command issued a tender on a US government website seeking to acquire samples of ribonucleic acid (RNA) and synovial fluid from Russians.

The listing specified that the samples – 12 of RNA and 27 of synovial fluid – must be provided by Russian donors of Caucasian origin. It also wants information on the donor’s sex, age, ethnicity, weight, height and medical history. Notably, the Air Force said, it would not consider tissue samples from Ukraine.